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Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1.

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Title: Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1.
Authors: Krawczynski, Henric, Muleri, Fabio, Dovčiak, Michal, Veledina, Alexandra, Cavero, Nicole Rodriguez, Svoboda, Jiri, Ingram, Adam, Matt, Giorgio, Garcia, Javier A., Loktev, Vladislav, Negro, Michela, Poutanen, Juri, Takao Kitaguchi, Podgorný, Jakub, Rankin, John, Zhang, Wenda, Berdyugin, Andrei, Berdyugina, Svetlana V., Bianchi, Stefano, Blinov, Dmitry
Source: Science (pre-March 2025). 11/11/2022, Vol. 378 Issue 6620, p650-654. 5p. 2 Diagrams, 1 Graph.
Subjects: X-rays, Binary black holes, Gases, Polarization (Nuclear physics), Electric fields
Abstract: A black hole x-ray binary (XRB) system forms when gas is stripped from a normal star and accretes onto a black hole, which heats the gas sufficiently to emit x-rays. We report a polarimetric observation of the XRB Cygnus X-1 using the Imaging X-ray Polarimetry Explorer. The electric field position angle aligns with the outflowing jet, indicating that the jet is launched from the inner x-ray–emitting region. The polarization degree is 4.01 ± 0.20% at 2 to 8 kiloelectronvolts, implying that the accretion disk is viewed closer to edge-on than the binary orbit. These observations reveal that hot x-ray–emitting plasma is spatially extended in a plane perpendicular to, not parallel to, the jet axis. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1.
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  Data: <searchLink fieldCode="AR" term="%22Krawczynski%2C+Henric%22">Krawczynski, Henric</searchLink><br /><searchLink fieldCode="AR" term="%22Muleri%2C+Fabio%22">Muleri, Fabio</searchLink><br /><searchLink fieldCode="AR" term="%22Dovčiak%2C+Michal%22">Dovčiak, Michal</searchLink><br /><searchLink fieldCode="AR" term="%22Veledina%2C+Alexandra%22">Veledina, Alexandra</searchLink><br /><searchLink fieldCode="AR" term="%22Cavero%2C+Nicole+Rodriguez%22">Cavero, Nicole Rodriguez</searchLink><br /><searchLink fieldCode="AR" term="%22Svoboda%2C+Jiri%22">Svoboda, Jiri</searchLink><br /><searchLink fieldCode="AR" term="%22Ingram%2C+Adam%22">Ingram, Adam</searchLink><br /><searchLink fieldCode="AR" term="%22Matt%2C+Giorgio%22">Matt, Giorgio</searchLink><br /><searchLink fieldCode="AR" term="%22Garcia%2C+Javier+A%2E%22">Garcia, Javier A.</searchLink><br /><searchLink fieldCode="AR" term="%22Loktev%2C+Vladislav%22">Loktev, Vladislav</searchLink><br /><searchLink fieldCode="AR" term="%22Negro%2C+Michela%22">Negro, Michela</searchLink><br /><searchLink fieldCode="AR" term="%22Poutanen%2C+Juri%22">Poutanen, Juri</searchLink><br /><searchLink fieldCode="AR" term="%22Takao+Kitaguchi%22">Takao Kitaguchi</searchLink><br /><searchLink fieldCode="AR" term="%22Podgorný%2C+Jakub%22">Podgorný, Jakub</searchLink><br /><searchLink fieldCode="AR" term="%22Rankin%2C+John%22">Rankin, John</searchLink><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Wenda%22">Zhang, Wenda</searchLink><br /><searchLink fieldCode="AR" term="%22Berdyugin%2C+Andrei%22">Berdyugin, Andrei</searchLink><br /><searchLink fieldCode="AR" term="%22Berdyugina%2C+Svetlana+V%2E%22">Berdyugina, Svetlana V.</searchLink><br /><searchLink fieldCode="AR" term="%22Bianchi%2C+Stefano%22">Bianchi, Stefano</searchLink><br /><searchLink fieldCode="AR" term="%22Blinov%2C+Dmitry%22">Blinov, Dmitry</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 11/11/2022, Vol. 378 Issue 6620, p650-654. 5p. 2 Diagrams, 1 Graph.
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  Data: <searchLink fieldCode="DE" term="%22X-rays%22">X-rays</searchLink><br /><searchLink fieldCode="DE" term="%22Binary+black+holes%22">Binary black holes</searchLink><br /><searchLink fieldCode="DE" term="%22Gases%22">Gases</searchLink><br /><searchLink fieldCode="DE" term="%22Polarization+%28Nuclear+physics%29%22">Polarization (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+fields%22">Electric fields</searchLink>
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  Label: Abstract
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  Data: A black hole x-ray binary (XRB) system forms when gas is stripped from a normal star and accretes onto a black hole, which heats the gas sufficiently to emit x-rays. We report a polarimetric observation of the XRB Cygnus X-1 using the Imaging X-ray Polarimetry Explorer. The electric field position angle aligns with the outflowing jet, indicating that the jet is launched from the inner x-ray–emitting region. The polarization degree is 4.01 ± 0.20% at 2 to 8 kiloelectronvolts, implying that the accretion disk is viewed closer to edge-on than the binary orbit. These observations reveal that hot x-ray–emitting plasma is spatially extended in a plane perpendicular to, not parallel to, the jet axis. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=160160834
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        Value: 10.1126/science.add5399
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        Text: English
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      – SubjectFull: Gases
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      – TitleFull: Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1.
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